There was an a piece done in 2014 (https://sportspolitico.com/2014/08/14/d4p1/) regarding a Division IV. Essentially it would have 2 power conferences of 28 (B1G/SEC) and 4 non-power conferences of 10 (AAC/MWC/SWC/WAC). I am posting this here because what if instead of playing strictly "power" schools, the power schools played strictly schools from Division IV or FAS or whatever.

I reviewed this and made some adjustments. I made 1 power/non-power switch and 3 non-power/non-Division IV switches. I also merged the 4 non-power conferences into 2.

I don't believe divisions within each conference would because there simply are too many schools. This is how scheduling would work:

B1G/SEC (28 schools each) - 10 game conference schedule:
3 schools - play each year
4 schools - play 2 every other year
20 schools - play 5 every 4 years

ACC/PAC (20 schools each) - 9 game conference schedule:
3 schools - play each year
8 schools - play 4 every other year
8 schools - play 2 every 4 years

B1G
Arizona, Boston College, California, Colorado, Illinois, Indiana, Iowa, Kansas, Maryland, Michigan, Michigan St, Minnesota, Missouri, Nebraska, Notre Dame, Northwestern, Ohio St, Oregon, Penn St, Pittsburgh, Purdue, Rutgers, Stanford, Syracuse, UCLA, USC, Washington, Wisconsin

SEC
Alabama, Arkansas, Auburn, Clemson, Duke, Florida, Florida St, Georgia, Georgia Tech, Kentucky, LSU, Louisville, Miami, Mississippi, Mississippi St, North Carolina, North Carolina St, Oklahoma, Oklahoma St, South Carolina, Tennessee, Texas, Texas A&M, Texas Tech, Vanderbilt, Virginia, Virginia Tech, West Virginia

ACC
Army, Baylor, Central Florida, Cincinnati, Connecticut, East Carolina, Houston, Iowa St, Marshall, Memphis, Navy, Rice, SMU, South Florida, Southern Miss, TCU, Temple, Tulane, UAB, Wake Forest

PAC
Air Force, Arizona St, Boise St, BYU, Colorado St, Fresno St, Hawaii, Kansas St, Nevada, New Mexico, Oregon St, San Diego St, San Jose St, Tulsa, UNLV, Utah, Utah St, UTEP, Washington St, Wyoming

Example 4-Year Conference Schedule - Alabama:

Year 1: Auburn, Tennessee, Mississippi St, LSU, Georgia, West Virginia, Virginia, Virginia Tech, Kentucky, Louisville
Year 2: Auburn, Tennessee, Mississippi St, Mississippi, Florida, Oklahoma, Oklahoma St, Texas, Texas A&M, Texas Tech
Year 3: Auburn, Tennessee, Mississippi St, LSU, Georgia, North Carolina, North Carolina St, Duke, South Carolina, Clemson
Year 4: Auburn, Tennessee, Mississippi St, Mississippi, Florida, Arkansas, Vanderbilt, Georgia Tech, Florida St, Miami

Example 4-Year Conference Schedule - Boise St:

Year 1: Oregon St, Washington St, BYU, Fresno St, Nevada, San Diego St, Arizona St, Kansas St, Tulsa
Year 2: Oregon St, Washington St, BYU, San Jose St, UNLV, Hawaii, Utah, UTEP, New Mexico
Year 3: Oregon St, Washington St, BYU, Fresno St, Nevada, San Diego St, Arizona St, Utah St, Wyoming
Year 4: Oregon St, Washington St, BYU, San Jose St, UNLV, Hawaii, Utah, Colorado St, Air Force